import java.util.Scanner;

public class Work {
    public static void main(String args[]) {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入年份： ");
        int year = sc.nextInt();
        if (year < 1000 && year > 10000) {
            System.out.println("你输入的年份有误");
        } else if ( year % 400 ==0 ){
            System.out.println("该年份是闰年");

        }else if(year%4==0 && year%100!=0){
            System.out.println("该年份是闰年");
        }else{
            System.out.println("该年份不是闰年");

        }
    }
}